Facebook lobbied in favour of upload filters
boingboing.net
boingboing.net
Sure, audio and ads are different at a nuanced level, but you can't have it both ways wrt filtering content in general. Either you mandate it or you accept the consequences of it being open. Putting the onus on the providers to police user content is somewhere in the middle which will bring predictable reactions to remove responsibility whenever possible.
[1] https://www.asktheeu.org/en/user/margarida_da_silva?utf8=%E2...
News, at 11!